北京型内燃机车自1971年开始设计、试制以来,至今已生产220多台,分别配属于北京、天津、石家庄、郑州南等机务段,用作干线客运机车,在京山、京广、京原、京包、丰沙、石德、石太、陇海等线路上,担负着特快、直快、普客等列车的牵引任务。几年来,机车经受了平直道,长大坡道、弯道和多隧道的山区等各种不同断面线路的运行考验,未出现因轮对质量而发生的 Since its design and trial production in 1971, Beijing-based diesel locomotive has so far produced more than 220 units, which are respectively assigned to locomotive depots such as Beijing, Tianjin, Shijiazhuang and Zhengzhou South and are used as main passenger locomotives. In Beijing Jingshan, Jingguang, Jingyuan, Beijing Bao, Fengsha, Shi De, Shi too, Longhai and other lines, responsible for the express, Alipay, Pu passenger train mission. In recent years, locomotives have undergone the running tests of various sections of straight lines, long-rising ramps, curved corners and mountainous areas with many tunnels, and have not occurred due to wheel alignment